120121120002123 has 64 divisors (see below), whose sum is σ = 191192751267840. Its totient is φ = 74270202048000.

The previous prime is 120121120002119. The next prime is 120121120002209. The reversal of 120121120002123 is 321200021121021.

It is not a de Polignac number, because 120121120002123 - 2² = 120121120002119 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 120121120002096 and 120121120002105.

It is not an unprimeable number, because it can be changed into a prime (120121120012123) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 3641686 + ... + 15921812.

It is an arithmetic number, because the mean of its divisors is an integer number (2987386738560).

Almost surely, 2^{120121120002123} is an apocalyptic number.

120121120002123 is a deficient number, since it is larger than the sum of its proper divisors (71071631265717).

120121120002123 is a wasteful number, since it uses less digits than its factorization.

120121120002123 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12280465 (or 12280459 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 18.

Adding to 120121120002123 its reverse (321200021121021), we get a palindrome (441321141123144).

The spelling of 120121120002123 in words is "one hundred twenty trillion, one hundred twenty-one billion, one hundred twenty million, two thousand, one hundred twenty-three".